Shock-absorber.



G. KRUSSELL.

SHOCK ABSGRSEH..

APPLICATION man APR. s, me.

CHARLES G. KRUSSELL, 0F FLIRT, MICHGAN.

SHOCK-ABSORBEBJ.

Speccation o' Letters atent. Patented Mam". 26, jlljl.,

Application tiled April 3, 1916. Serial No. 88,677.

To all whom it 'may concern:

Be it known that I, CHARLES Gr. KRUssnLL, a citizen of the United States, residing at Flint, in the county of Genesee and State of Michigan, have invented certain new and useful Improvements in Shock-bsorbers,

of which the following is a specification.

A rilhis invention relates to shock absorbers and the primary object of the invention is to provide means for obviating the jarring, jolting and vibrating of motor vehicles while traveling over rough and 'uneven road-beds, by taking up the force of the rebound which is too excessive for the ordinary leaf springs to absorb.

The invention further aims to provide a shock absorber which will act directly on the frame of the chassis and in the space between the axle and the frame ci the chassis in a direct line, where the greatest rebound Y naturally occurs when the vehicle passes over uneven places in the road-bed.

As a further object of the invention, the device is constructed so that slight vibration of the vehicle, caused by the motor or power mechanism, maybe taken by the leaf springs of the vehicle without i'iecessarily causing movement of the operating piston within the .cylinder of the absorber.

A further object of this invention is the provision of ashock absorbcfwhich consists of comparatively few parts and is simple in construction, but durable and well adapted to withstand the rough usage 'to which devices of this character, are ordinarily subjected.4 l

For a full description ot' the invention and the advantages and merits thereof, reference is to be had to the following description and the accompanying drawings, wherein is illustrated the preferred form of my invention, in which:

Figure l is a fragmentary side elevation of an automobile showing Vthe lshock absorber applied thereto.

Fig. 2 is a vertical section through the shock absorber showing the piston in position atter'receiving a shock.

Fig. 3 is a detail perspective view of the #5u-bracket.

Fi @is a section through the cylinder of the s cel:` absorber showing a modification 'of the shock absorbing means.

`".lhe automobile A 1s provided with the lusual chassis which consists of the frame members B, the supporting spring C and the axle D. The spring C is .of the semiellintical type and rests upon the axle for supporting the frame B ot' the chassis. Arranged on the top face et' the leaf of the spring C is a plate 'l which is secured to the axle by the yokes 2 which are adapted to extend through apertures in the plate 1 and have nuts 3 secured to their ends so that the yokes may secure the plate l to the spring C. A cylinder a is mounted upon the plate 1 and is arranged in the center of the leaf springs C so that the center line of the cylinder et will, be directly in thc center line of the movement ot' the spring C. The cylinder is partially filled with oil or other suitable liquid against which thepiston 5 is adapted to operate when a shock is received bythe vehicle. A cylinder cap G is screw threadedly mounted upon the cylinder 4:, and has the stufling box 7 so that the oil will be prevented from leaking through the opening pro vided for the piston rod 8 when the pisbracket and extends at right angles thereto and upon which the frame B is adapted t0 be received; right angular-ly disposed. brace arni 11 is lalso integrally formed with the vertical arm of the bracket and at one cud thereof. The piston rod 8 is provided with an extension rod 12 which is telescopically mounted in one end of the piston rod 8 and one end of the red is secured in the arm 11 ot the bracket by means of the nuts 13. Vertically arranged slots la are formed in one end of the ipiston rod 8 and pins 15, which are mounts so that a limited `telescopcal movement et the extension rod 12 is provided.`

ln its normal position the piston rod v5 will be in the center of the cylinder a and the pins 15 will be in the center et the slotttli.

The ordinary vibration caused bythe meter 'er power lmechanism of the vehicle will be taken by the leaf springs 6 and, by virtue ety in the extension rod 12;, have their ends extending into the slots 1d" llil , taken up by the springs C.

the slots 14, the piston will he prevented from moving in the cylinder 4 iintil such, a shock occurs thattvill be'too eccessive to be B y mountingr the cylinder in the center of the spring *C and in a direct line between the frame and the axle, the slightest jarring 'occasioned by any unevenness in the road-bed, too excessive to be absorbed by the leaf springs, will cause the piston 5 to move vertically in the cylinder d and the contents of the cylinder will, by the restricted passage provided for it between the cylinder of the piston, cause the piston to be gradually retarded in its movement. When the vehicle again assumesits normal position the spring 5 will cause the piston to gradually :neovo back to its position in the center of the cylinder d where it will vbe read to act upon the neat occurrence ot' a shoe l l of the preferred form of the device.

y F rom the foregoing it will be observed that a very simple and durable shock absorber has been provided, the details of lliquid contained therein, `piston rod mounted for reciprocatory moveannonce which embody the 'preferred orn. desire it to be understood however, that slight changes or modifications in the minor details of construction may be made Without departing from the spirit of the invention or the scope of the claim' hereunto appended.

l claim:

A shock absorber comprising a cylinder tixedly mounted and having a quantity of a piston and ment Within the cylinder, the piston being diameter of the cylinder, the .said piston rod projecting from one end of the cylinder and having its end portieri ohollow cylindrical formation, an extension rod telescopicall mounted in the said end of the piston rod,7 a bracket fixed to the end of the said extension and adapted to be supported by the latter,

.sides thereof, pins carried by the sai telescopically mounted extension and projecting into the said slots whereby movement of the said extension With respect tothe said piston rods is limited *by the said slot the movement of the said piston "rod being limited byl slightly less in diameter than the interior1 5,5 the said extended end oithe piston rod havingT longitudinal slots on' op osite' 

